June 15, 2010Re: Signed word lengths and indexes
Walter Bright Wrote: > > 1) I'd like D to use signed words to represent lengths and array indexes. > > This would lead to silent breakage of code transferred from C and C++. I actually wrote an application in C and used signeds for array indexes, string positions and field offsets. > 2. For an operating system kernel's memory management logic, it still would make > sense to represent the address space as a flat range from 0..n, not one that's > split in the middle, half of which is accessed with negative offsets. D is > supposed to support OS development. > Doesn't OS think in terms of pages? And... yes... I have 5 gigs of memory on my 32bit windows system. How can you make sense of representing it with uint length? Not to mention that if you really need it, you *can* workaround compiler checks by declaring your own getters/ranges.